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                    video,audio音视频
            
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    <h1>
        <i class="fa fa-circle-o-notch fa-spin"></i>
        <a href="../.." >拖拉事件</a>
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                    <div class="page-wrapper" tabindex="-1" role="main">
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                                <section class="normal markdown-section">
                                
                                <h1 id="&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;">&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;</h1>
<h2 id="&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x7684;&#x79CD;&#x7C7B;">&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x7684;&#x79CD;&#x7C7B;</h2>
<p>&#x62D6;&#x62C9;&#xFF08;drag&#xFF09;&#x6307;&#x7684;&#x662F;&#xFF0C;&#x7528;&#x6237;&#x5728;&#x67D0;&#x4E2A;&#x5BF9;&#x8C61;&#x4E0A;&#x6309;&#x4E0B;&#x9F20;&#x6807;&#x952E;&#x4E0D;&#x653E;&#xFF0C;&#x62D6;&#x52A8;&#x5B83;&#x5230;&#x53E6;&#x4E00;&#x4E2A;&#x4F4D;&#x7F6E;&#xFF0C;&#x7136;&#x540E;&#x91CA;&#x653E;&#x9F20;&#x6807;&#x952E;&#xFF0C;&#x5C06;&#x8BE5;&#x5BF9;&#x8C61;&#x653E;&#x5728;&#x90A3;&#x91CC;&#x3002;</p>
<p>&#x62D6;&#x62C9;&#x7684;&#x5BF9;&#x8C61;&#x6709;&#x597D;&#x51E0;&#x79CD;&#xFF0C;&#x5305;&#x62EC;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x3001;&#x56FE;&#x7247;&#x3001;&#x94FE;&#x63A5;&#x3001;&#x9009;&#x4E2D;&#x7684;&#x6587;&#x5B57;&#x7B49;&#x7B49;&#x3002;&#x5728;&#x7F51;&#x9875;&#x4E2D;&#xFF0C;&#x9664;&#x4E86;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x9ED8;&#x8BA4;&#x4E0D;&#x53EF;&#x4EE5;&#x62D6;&#x62C9;&#xFF0C;&#x5176;&#x4ED6;&#xFF08;&#x56FE;&#x7247;&#x3001;&#x94FE;&#x63A5;&#x3001;&#x9009;&#x4E2D;&#x7684;&#x6587;&#x5B57;&#xFF09;&#x90FD;&#x662F;&#x53EF;&#x4EE5;&#x76F4;&#x63A5;&#x62D6;&#x62C9;&#x7684;&#x3002;&#x4E3A;&#x4E86;&#x8BA9;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x53EF;&#x62D6;&#x62C9;&#xFF0C;&#x53EF;&#x4EE5;&#x5C06;&#x8BE5;&#x8282;&#x70B9;&#x7684;<code>draggable</code>&#x5C5E;&#x6027;&#x8BBE;&#x4E3A;<code>true</code>&#x3002;</p>
<pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">draggable</span>=<span class="hljs-string">&quot;true&quot;</span>&gt;</span>
  &#x6B64;&#x533A;&#x57DF;&#x53EF;&#x62D6;&#x62C9;
<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
</code></pre>
<p><code>draggable</code>&#x5C5E;&#x6027;&#x53EF;&#x7528;&#x4E8E;&#x4EFB;&#x4F55;&#x5143;&#x7D20;&#x8282;&#x70B9;&#xFF0C;&#x4F46;&#x662F;&#x56FE;&#x7247;&#xFF08;<code>&lt;img&gt;</code>&#xFF09;&#x548C;&#x94FE;&#x63A5;&#xFF08;<code>&lt;a&gt;</code>&#xFF09;&#x4E0D;&#x52A0;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#xFF0C;&#x5C31;&#x53EF;&#x4EE5;&#x62D6;&#x62C9;&#x3002;&#x5BF9;&#x4E8E;&#x5B83;&#x4EEC;&#xFF0C;&#x7528;&#x5230;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x5F80;&#x5F80;&#x662F;&#x5C06;&#x5176;&#x8BBE;&#x4E3A;<code>false</code>&#xFF0C;&#x9632;&#x6B62;&#x62D6;&#x62C9;&#x8FD9;&#x4E24;&#x79CD;&#x5143;&#x7D20;&#x3002;</p>
<p>&#x6CE8;&#x610F;&#xFF0C;&#x4E00;&#x65E6;&#x67D0;&#x4E2A;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x7684;<code>draggable</code>&#x5C5E;&#x6027;&#x8BBE;&#x4E3A;<code>true</code>&#xFF0C;&#x5C31;&#x65E0;&#x6CD5;&#x518D;&#x7528;&#x9F20;&#x6807;&#x9009;&#x4E2D;&#x8BE5;&#x8282;&#x70B9;&#x5185;&#x90E8;&#x7684;&#x6587;&#x5B57;&#x6216;&#x5B50;&#x8282;&#x70B9;&#x4E86;&#x3002;</p>
<p>&#x5F53;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x6216;&#x9009;&#x4E2D;&#x7684;&#x6587;&#x672C;&#x88AB;&#x62D6;&#x62C9;&#x65F6;&#xFF0C;&#x5C31;&#x4F1A;&#x6301;&#x7EED;&#x89E6;&#x53D1;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#xFF0C;&#x5305;&#x62EC;&#x4EE5;&#x4E0B;&#x4E00;&#x4E9B;&#x4E8B;&#x4EF6;&#x3002;</p>
<ul>
<li><code>drag</code>&#xFF1A;&#x62D6;&#x62C9;&#x8FC7;&#x7A0B;&#x4E2D;&#xFF0C;&#x5728;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x4E0A;&#x6301;&#x7EED;&#x89E6;&#x53D1;&#xFF08;&#x76F8;&#x9694;&#x51E0;&#x767E;&#x6BEB;&#x79D2;&#xFF09;&#x3002;</li>
<li><code>dragstart</code>&#xFF1A;&#x7528;&#x6237;&#x5F00;&#x59CB;&#x62D6;&#x62C9;&#x65F6;&#xFF0C;&#x5728;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x4E0A;&#x89E6;&#x53D1;&#xFF0C;&#x8BE5;&#x4E8B;&#x4EF6;&#x7684;<code>target</code>&#x5C5E;&#x6027;&#x662F;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x3002;&#x901A;&#x5E38;&#x5E94;&#x8BE5;&#x5728;&#x8FD9;&#x4E2A;&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x4E2D;&#xFF0C;&#x6307;&#x5B9A;&#x62D6;&#x62C9;&#x7684;&#x6570;&#x636E;&#x3002;</li>
<li><code>dragend</code>&#xFF1A;&#x62D6;&#x62C9;&#x7ED3;&#x675F;&#x65F6;&#xFF08;&#x91CA;&#x653E;&#x9F20;&#x6807;&#x952E;&#x6216;&#x6309;&#x4E0B; ESC &#x952E;&#xFF09;&#x5728;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x4E0A;&#x89E6;&#x53D1;&#xFF0C;&#x8BE5;&#x4E8B;&#x4EF6;&#x7684;<code>target</code>&#x5C5E;&#x6027;&#x662F;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x3002;&#x5B83;&#x4E0E;<code>dragstart</code>&#x4E8B;&#x4EF6;&#xFF0C;&#x5728;&#x540C;&#x4E00;&#x4E2A;&#x8282;&#x70B9;&#x4E0A;&#x89E6;&#x53D1;&#x3002;&#x4E0D;&#x7BA1;&#x62D6;&#x62C9;&#x662F;&#x5426;&#x8DE8;&#x7A97;&#x53E3;&#xFF0C;&#x6216;&#x8005;&#x4E2D;&#x9014;&#x88AB;&#x53D6;&#x6D88;&#xFF0C;<code>dragend</code>&#x4E8B;&#x4EF6;&#x603B;&#x662F;&#x4F1A;&#x89E6;&#x53D1;&#x7684;&#x3002;</li>
<li><code>dragenter</code>&#xFF1A;&#x62D6;&#x62C9;&#x8FDB;&#x5165;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x65F6;&#xFF0C;&#x5728;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x4E0A;&#x89E6;&#x53D1;&#x4E00;&#x6B21;&#xFF0C;&#x8BE5;&#x4E8B;&#x4EF6;&#x7684;<code>target</code>&#x5C5E;&#x6027;&#x662F;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x3002;&#x901A;&#x5E38;&#x5E94;&#x8BE5;&#x5728;&#x8FD9;&#x4E2A;&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x4E2D;&#xFF0C;&#x6307;&#x5B9A;&#x662F;&#x5426;&#x5141;&#x8BB8;&#x5728;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x653E;&#x4E0B;&#xFF08;drop&#xFF09;&#x62D6;&#x62C9;&#x7684;&#x6570;&#x636E;&#x3002;&#x5982;&#x679C;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x6CA1;&#x6709;&#x8BE5;&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#xFF0C;&#x6216;&#x8005;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x4E0D;&#x6267;&#x884C;&#x4EFB;&#x4F55;&#x64CD;&#x4F5C;&#xFF0C;&#x5C31;&#x610F;&#x5473;&#x7740;&#x4E0D;&#x5141;&#x8BB8;&#x5728;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x653E;&#x4E0B;&#x6570;&#x636E;&#x3002;&#x5728;&#x89C6;&#x89C9;&#x4E0A;&#x663E;&#x793A;&#x62D6;&#x62C9;&#x8FDB;&#x5165;&#x5F53;&#x524D;&#x8282;&#x70B9;&#xFF0C;&#x4E5F;&#x662F;&#x5728;&#x8FD9;&#x4E2A;&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x4E2D;&#x8BBE;&#x7F6E;&#x3002;</li>
<li><code>dragover</code>&#xFF1A;&#x62D6;&#x62C9;&#x5230;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x4E0A;&#x65B9;&#x65F6;&#xFF0C;&#x5728;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x4E0A;&#x6301;&#x7EED;&#x89E6;&#x53D1;&#xFF08;&#x76F8;&#x9694;&#x51E0;&#x767E;&#x6BEB;&#x79D2;&#xFF09;&#xFF0C;&#x8BE5;&#x4E8B;&#x4EF6;&#x7684;<code>target</code>&#x5C5E;&#x6027;&#x662F;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x3002;&#x8BE5;&#x4E8B;&#x4EF6;&#x4E0E;<code>dragenter</code>&#x4E8B;&#x4EF6;&#x7684;&#x533A;&#x522B;&#x662F;&#xFF0C;<code>dragenter</code>&#x4E8B;&#x4EF6;&#x5728;&#x8FDB;&#x5165;&#x8BE5;&#x8282;&#x70B9;&#x65F6;&#x89E6;&#x53D1;&#xFF0C;&#x7136;&#x540E;&#x53EA;&#x8981;&#x6CA1;&#x6709;&#x79BB;&#x5F00;&#x8FD9;&#x4E2A;&#x8282;&#x70B9;&#xFF0C;<code>dragover</code>&#x4E8B;&#x4EF6;&#x4F1A;&#x6301;&#x7EED;&#x89E6;&#x53D1;&#x3002;</li>
<li><code>dragleave</code>&#xFF1A;&#x62D6;&#x62C9;&#x64CD;&#x4F5C;&#x79BB;&#x5F00;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x8303;&#x56F4;&#x65F6;&#xFF0C;&#x5728;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x4E0A;&#x89E6;&#x53D1;&#xFF0C;&#x8BE5;&#x4E8B;&#x4EF6;&#x7684;<code>target</code>&#x5C5E;&#x6027;&#x662F;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x3002;&#x5982;&#x679C;&#x8981;&#x5728;&#x89C6;&#x89C9;&#x4E0A;&#x663E;&#x793A;&#x62D6;&#x62C9;&#x79BB;&#x5F00;&#x64CD;&#x4F5C;&#x5F53;&#x524D;&#x8282;&#x70B9;&#xFF0C;&#x5C31;&#x5728;&#x8FD9;&#x4E2A;&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x4E2D;&#x8BBE;&#x7F6E;&#x3002;</li>
<li><code>drop</code>&#xFF1A;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x6216;&#x9009;&#x4E2D;&#x7684;&#x6587;&#x672C;&#xFF0C;&#x91CA;&#x653E;&#x5230;&#x76EE;&#x6807;&#x8282;&#x70B9;&#x65F6;&#xFF0C;&#x5728;&#x76EE;&#x6807;&#x8282;&#x70B9;&#x4E0A;&#x89E6;&#x53D1;&#x3002;&#x6CE8;&#x610F;&#xFF0C;&#x5982;&#x679C;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x4E0D;&#x5141;&#x8BB8;<code>drop</code>&#xFF0C;&#x5373;&#x4F7F;&#x5728;&#x8BE5;&#x8282;&#x70B9;&#x4E0A;&#x65B9;&#x677E;&#x5F00;&#x9F20;&#x6807;&#x952E;&#xFF0C;&#x4E5F;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;&#x8BE5;&#x4E8B;&#x4EF6;&#x3002;&#x5982;&#x679C;&#x7528;&#x6237;&#x6309;&#x4E0B; ESC &#x952E;&#xFF0C;&#x53D6;&#x6D88;&#x8FD9;&#x4E2A;&#x64CD;&#x4F5C;&#xFF0C;&#x4E5F;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;&#x8BE5;&#x4E8B;&#x4EF6;&#x3002;&#x8BE5;&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x8D1F;&#x8D23;&#x53D6;&#x51FA;&#x62D6;&#x62C9;&#x6570;&#x636E;&#xFF0C;&#x5E76;&#x8FDB;&#x884C;&#x76F8;&#x5173;&#x5904;&#x7406;&#x3002;</li>
</ul>
<p>&#x4E0B;&#x9762;&#x7684;&#x4F8B;&#x5B50;&#x5C55;&#x793A;&#xFF0C;&#x5982;&#x4F55;&#x52A8;&#x6001;&#x6539;&#x53D8;&#x88AB;&#x62D6;&#x52A8;&#x8282;&#x70B9;&#x7684;&#x80CC;&#x666F;&#x8272;&#x3002;</p>
<pre><code class="lang-javascript">div.addEventListener(<span class="hljs-string">&apos;dragstart&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  <span class="hljs-keyword">this</span>.style.backgroundColor = <span class="hljs-string">&apos;red&apos;</span>;
}, <span class="hljs-literal">false</span>);

div.addEventListener(<span class="hljs-string">&apos;dragend&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  <span class="hljs-keyword">this</span>.style.backgroundColor = <span class="hljs-string">&apos;green&apos;</span>;
}, <span class="hljs-literal">false</span>);
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;<code>div</code>&#x8282;&#x70B9;&#x88AB;&#x62D6;&#x52A8;&#x65F6;&#xFF0C;&#x80CC;&#x666F;&#x8272;&#x4F1A;&#x53D8;&#x4E3A;&#x7EA2;&#x8272;&#xFF0C;&#x62D6;&#x52A8;&#x7ED3;&#x675F;&#xFF0C;&#x53C8;&#x53D8;&#x56DE;&#x7EFF;&#x8272;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x4F8B;&#x5B50;&#xFF0C;&#x5C55;&#x793A;&#x5982;&#x4F55;&#x5B9E;&#x73B0;&#x5C06;&#x4E00;&#x4E2A;&#x8282;&#x70B9;&#x4ECE;&#x5F53;&#x524D;&#x7236;&#x8282;&#x70B9;&#xFF0C;&#x62D6;&#x62C9;&#x5230;&#x53E6;&#x4E00;&#x4E2A;&#x7236;&#x8282;&#x70B9;&#x4E2D;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">/* HTML &#x4EE3;&#x7801;&#x5982;&#x4E0B;
 &lt;div class=&quot;dropzone&quot;&gt;
   &lt;div id=&quot;draggable&quot; draggable=&quot;true&quot;&gt;
     &#x8BE5;&#x8282;&#x70B9;&#x53EF;&#x62D6;&#x62C9;
   &lt;/div&gt;
 &lt;/div&gt;
 &lt;div class=&quot;dropzone&quot;&gt;&lt;/div&gt;
 &lt;div class=&quot;dropzone&quot;&gt;&lt;/div&gt;
 &lt;div class=&quot;dropzone&quot;&gt;&lt;/div&gt;
*/</span>

<span class="hljs-comment">// &#x88AB;&#x62D6;&#x62C9;&#x8282;&#x70B9;</span>
<span class="hljs-keyword">var</span> dragged;

<span class="hljs-built_in">document</span>.addEventListener(<span class="hljs-string">&apos;dragstart&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
  <span class="hljs-comment">// &#x4FDD;&#x5B58;&#x88AB;&#x62D6;&#x62C9;&#x8282;&#x70B9;</span>
  dragged = event.target;
  <span class="hljs-comment">// &#x88AB;&#x62D6;&#x62C9;&#x8282;&#x70B9;&#x7684;&#x80CC;&#x666F;&#x8272;&#x53D8;&#x900F;&#x660E;</span>
  event.target.style.opacity = <span class="hljs-number">0.5</span>;
}, <span class="hljs-literal">false</span>);

<span class="hljs-built_in">document</span>.addEventListener(<span class="hljs-string">&apos;dragend&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
  <span class="hljs-comment">// &#x88AB;&#x62D6;&#x62C9;&#x8282;&#x70B9;&#x7684;&#x80CC;&#x666F;&#x8272;&#x6062;&#x590D;&#x6B63;&#x5E38;</span>
  event.target.style.opacity = <span class="hljs-string">&apos;&apos;</span>;
}, <span class="hljs-literal">false</span>);

<span class="hljs-built_in">document</span>.addEventListener(<span class="hljs-string">&apos;dragover&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
  <span class="hljs-comment">// &#x9632;&#x6B62;&#x62D6;&#x62C9;&#x6548;&#x679C;&#x88AB;&#x91CD;&#x7F6E;&#xFF0C;&#x5141;&#x8BB8;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x653E;&#x5165;&#x76EE;&#x6807;&#x8282;&#x70B9;</span>
  event.preventDefault();
}, <span class="hljs-literal">false</span>);

<span class="hljs-built_in">document</span>.addEventListener(<span class="hljs-string">&apos;dragenter&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
  <span class="hljs-comment">// &#x76EE;&#x6807;&#x8282;&#x70B9;&#x7684;&#x80CC;&#x666F;&#x8272;&#x53D8;&#x7D2B;&#x8272;</span>
  <span class="hljs-comment">// &#x7531;&#x4E8E;&#x8BE5;&#x4E8B;&#x4EF6;&#x4F1A;&#x5192;&#x6CE1;&#xFF0C;&#x6240;&#x4EE5;&#x8981;&#x8FC7;&#x6EE4;&#x8282;&#x70B9;</span>
  <span class="hljs-keyword">if</span> (event.target.className === <span class="hljs-string">&apos;dropzone&apos;</span>) {
    event.target.style.background = <span class="hljs-string">&apos;purple&apos;</span>;
  }
}, <span class="hljs-literal">false</span>);

<span class="hljs-built_in">document</span>.addEventListener(<span class="hljs-string">&apos;dragleave&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params"> event </span>) </span>{
  <span class="hljs-comment">// &#x76EE;&#x6807;&#x8282;&#x70B9;&#x7684;&#x80CC;&#x666F;&#x8272;&#x6062;&#x590D;&#x539F;&#x6837;</span>
  <span class="hljs-keyword">if</span> (event.target.className === <span class="hljs-string">&apos;dropzone&apos;</span>) {
    event.target.style.background = <span class="hljs-string">&apos;&apos;</span>;
  }
}, <span class="hljs-literal">false</span>);

<span class="hljs-built_in">document</span>.addEventListener(<span class="hljs-string">&apos;drop&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params"> event </span>) </span>{
  <span class="hljs-comment">// &#x9632;&#x6B62;&#x4E8B;&#x4EF6;&#x9ED8;&#x8BA4;&#x884C;&#x4E3A;&#xFF08;&#x6BD4;&#x5982;&#x67D0;&#x4E9B;&#x5143;&#x7D20;&#x8282;&#x70B9;&#x4E0A;&#x53EF;&#x4EE5;&#x6253;&#x5F00;&#x94FE;&#x63A5;&#xFF09;&#xFF0C;</span>
  event.preventDefault();
  <span class="hljs-keyword">if</span> (event.target.className === <span class="hljs-string">&apos;dropzone&apos;</span>) {
    <span class="hljs-comment">// &#x6062;&#x590D;&#x76EE;&#x6807;&#x8282;&#x70B9;&#x80CC;&#x666F;&#x8272;</span>
    event.target.style.background = <span class="hljs-string">&apos;&apos;</span>;
    <span class="hljs-comment">// &#x5C06;&#x88AB;&#x62D6;&#x62C9;&#x8282;&#x70B9;&#x63D2;&#x5165;&#x76EE;&#x6807;&#x8282;&#x70B9;</span>
    dragged.parentNode.removeChild(dragged);
    event.target.appendChild( dragged );
  }
}, <span class="hljs-literal">false</span>);
</code></pre>
<p>&#x5173;&#x4E8E;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#xFF0C;&#x6709;&#x4EE5;&#x4E0B;&#x51E0;&#x4E2A;&#x6CE8;&#x610F;&#x70B9;&#x3002;</p>
<ul>
<li>&#x62D6;&#x62C9;&#x8FC7;&#x7A0B;&#x53EA;&#x89E6;&#x53D1;&#x4EE5;&#x4E0A;&#x8FD9;&#x4E9B;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#xFF0C;&#x5C3D;&#x7BA1;&#x9F20;&#x6807;&#x5728;&#x79FB;&#x52A8;&#xFF0C;&#x4F46;&#x662F;&#x9F20;&#x6807;&#x4E8B;&#x4EF6;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;&#x3002;</li>
<li>&#x5C06;&#x6587;&#x4EF6;&#x4ECE;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x62D6;&#x62C9;&#x8FDB;&#x6D4F;&#x89C8;&#x5668;&#xFF0C;&#x4E0D;&#x4F1A;&#x89E6;&#x53D1;<code>dragstart</code>&#x548C;<code>dragend</code>&#x4E8B;&#x4EF6;&#x3002;</li>
<li><code>dragenter</code>&#x548C;<code>dragover</code>&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#xFF0C;&#x7528;&#x6765;&#x53D6;&#x51FA;&#x62D6;&#x62C9;&#x7684;&#x6570;&#x636E;&#xFF08;&#x5373;&#x5141;&#x8BB8;&#x653E;&#x4E0B;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x5143;&#x7D20;&#xFF09;&#x3002;&#x7531;&#x4E8E;&#x7F51;&#x9875;&#x7684;&#x5927;&#x90E8;&#x5206;&#x533A;&#x57DF;&#x4E0D;&#x9002;&#x5408;&#x4F5C;&#x4E3A;&#x653E;&#x4E0B;&#x62D6;&#x62C9;&#x5143;&#x7D20;&#x7684;&#x76EE;&#x6807;&#x8282;&#x70B9;&#xFF0C;&#x6240;&#x4EE5;&#x8FD9;&#x4E24;&#x4E2A;&#x4E8B;&#x4EF6;&#x7684;&#x9ED8;&#x8BA4;&#x8BBE;&#x7F6E;&#x4E3A;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x4E0D;&#x5141;&#x8BB8;&#x63A5;&#x53D7;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x5143;&#x7D20;&#x3002;&#x5982;&#x679C;&#x60F3;&#x8981;&#x5728;&#x76EE;&#x6807;&#x8282;&#x70B9;&#x4E0A;&#x653E;&#x4E0B;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x9996;&#x5148;&#x5FC5;&#x987B;&#x963B;&#x6B62;&#x8FD9;&#x4E24;&#x4E2A;&#x4E8B;&#x4EF6;&#x7684;&#x9ED8;&#x8BA4;&#x884C;&#x4E3A;&#x3002;</li>
</ul>
<pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">ondragover</span>=<span class="hljs-string">&quot;return false&quot;</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">ondragover</span>=<span class="hljs-string">&quot;event.preventDefault()&quot;</span>&gt;</span>
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x5982;&#x679C;&#x4E0D;&#x53D6;&#x6D88;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x6216;&#x8005;&#x963B;&#x6B62;&#x9ED8;&#x8BA4;&#x884C;&#x4E3A;&#xFF0C;&#x5C31;&#x4E0D;&#x80FD;&#x5728;<code>div</code>&#x8282;&#x70B9;&#x4E0A;&#x653E;&#x4E0B;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x3002;</p>
<h2 id="dragevent-&#x63A5;&#x53E3;">DragEvent &#x63A5;&#x53E3;</h2>
<p>&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x90FD;&#x7EE7;&#x627F;&#x4E86;<code>DragEvent</code>&#x63A5;&#x53E3;&#xFF0C;&#x8FD9;&#x4E2A;&#x63A5;&#x53E3;&#x53C8;&#x7EE7;&#x627F;&#x4E86;<code>MouseEvent</code>&#x63A5;&#x53E3;&#x548C;<code>Event</code>&#x63A5;&#x53E3;&#x3002;</p>
<p>&#x6D4F;&#x89C8;&#x5668;&#x539F;&#x751F;&#x63D0;&#x4F9B;&#x4E00;&#x4E2A;<code>DragEvent()</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#xFF0C;&#x7528;&#x6765;&#x751F;&#x6210;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x7684;&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">new</span> DragEvent(type, options)
</code></pre>
<p><code>DragEvent()</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#x63A5;&#x53D7;&#x4E24;&#x4E2A;&#x53C2;&#x6570;&#xFF0C;&#x7B2C;&#x4E00;&#x4E2A;&#x53C2;&#x6570;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x8868;&#x793A;&#x4E8B;&#x4EF6;&#x7684;&#x7C7B;&#x578B;&#xFF0C;&#x8BE5;&#x53C2;&#x6570;&#x5FC5;&#x987B;&#xFF1B;&#x7B2C;&#x4E8C;&#x4E2A;&#x53C2;&#x6570;&#x662F;&#x4E8B;&#x4EF6;&#x7684;&#x914D;&#x7F6E;&#x5BF9;&#x8C61;&#xFF0C;&#x7528;&#x6765;&#x8BBE;&#x7F6E;&#x4E8B;&#x4EF6;&#x7684;&#x5C5E;&#x6027;&#xFF0C;&#x8BE5;&#x53C2;&#x6570;&#x53EF;&#x9009;&#x3002;&#x914D;&#x7F6E;&#x5BF9;&#x8C61;&#x9664;&#x4E86;&#x63A5;&#x53D7;<code>MouseEvent</code>&#x63A5;&#x53E3;&#x548C;<code>Event</code>&#x63A5;&#x53E3;&#x7684;&#x914D;&#x7F6E;&#x5C5E;&#x6027;&#xFF0C;&#x8FD8;&#x53EF;&#x4EE5;&#x8BBE;&#x7F6E;<code>dataTransfer</code>&#x5C5E;&#x6027;&#x8981;&#x4E48;&#x662F;<code>null</code>&#xFF0C;&#x8981;&#x4E48;&#x662F;&#x4E00;&#x4E2A;<code>DataTransfer</code>&#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x3002;</p>
<p><code>DataTransfer</code>&#x7684;&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#x7528;&#x6765;&#x8BFB;&#x5199;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x4E2D;&#x4F20;&#x8F93;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x8BE6;&#x89C1;&#x4E0B;&#x6587;&#x300A;DataTransfer &#x63A5;&#x53E3;&#x300B;&#x7684;&#x90E8;&#x5206;&#x3002;</p>
<h2 id="datatransfer-&#x63A5;&#x53E3;&#x6982;&#x8FF0;">DataTransfer &#x63A5;&#x53E3;&#x6982;&#x8FF0;</h2>
<p>&#x6240;&#x6709;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x7684;&#x5B9E;&#x4F8B;&#x90FD;&#x6709;&#x4E00;&#x4E2A;<code>DragEvent.dataTransfer</code>&#x5C5E;&#x6027;&#xFF0C;&#x7528;&#x6765;&#x8BFB;&#x5199;&#x9700;&#x8981;&#x4F20;&#x9012;&#x7684;&#x6570;&#x636E;&#x3002;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#x7684;&#x503C;&#x662F;&#x4E00;&#x4E2A;<code>DataTransfer</code>&#x63A5;&#x53E3;&#x7684;&#x5B9E;&#x4F8B;&#x3002;</p>
<p>&#x6D4F;&#x89C8;&#x5668;&#x539F;&#x751F;&#x63D0;&#x4F9B;&#x4E00;&#x4E2A;<code>DataTransfer()</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#xFF0C;&#x7528;&#x6765;&#x751F;&#x6210;<code>DataTransfer</code>&#x5B9E;&#x4F8B;&#x5BF9;&#x8C61;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> dataTrans = <span class="hljs-keyword">new</span> DataTransfer();
</code></pre>
<p><code>DataTransfer()</code>&#x6784;&#x9020;&#x51FD;&#x6570;&#x4E0D;&#x63A5;&#x53D7;&#x53C2;&#x6570;&#x3002;</p>
<p>&#x62D6;&#x62C9;&#x7684;&#x6570;&#x636E;&#x5206;&#x6210;&#x4E24;&#x65B9;&#x9762;&#xFF1A;&#x6570;&#x636E;&#x7684;&#x79CD;&#x7C7B;&#xFF08;&#x53C8;&#x79F0;&#x683C;&#x5F0F;&#xFF09;&#x548C;&#x6570;&#x636E;&#x7684;&#x503C;&#x3002;&#x6570;&#x636E;&#x7684;&#x79CD;&#x7C7B;&#x662F;&#x4E00;&#x4E2A; MIME &#x5B57;&#x7B26;&#x4E32;&#xFF08;&#x6BD4;&#x5982;<code>text/plain</code>&#x3001;<code>image/jpeg</code>&#xFF09;&#xFF0C;&#x6570;&#x636E;&#x7684;&#x503C;&#x662F;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x3002;&#x4E00;&#x822C;&#x6765;&#x8BF4;&#xFF0C;&#x5982;&#x679C;&#x62D6;&#x62C9;&#x4E00;&#x6BB5;&#x6587;&#x672C;&#xFF0C;&#x5219;&#x6570;&#x636E;&#x9ED8;&#x8BA4;&#x5C31;&#x662F;&#x90A3;&#x6BB5;&#x6587;&#x672C;&#xFF1B;&#x5982;&#x679C;&#x62D6;&#x62C9;&#x4E00;&#x4E2A;&#x94FE;&#x63A5;&#xFF0C;&#x5219;&#x6570;&#x636E;&#x9ED8;&#x8BA4;&#x5C31;&#x662F;&#x94FE;&#x63A5;&#x7684; URL&#x3002;</p>
<p>&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x5F00;&#x59CB;&#x65F6;&#xFF0C;&#x5F00;&#x53D1;&#x8005;&#x53EF;&#x4EE5;&#x63D0;&#x4F9B;&#x6570;&#x636E;&#x7C7B;&#x578B;&#x548C;&#x6570;&#x636E;&#x503C;&#x3002;&#x62D6;&#x62C9;&#x8FC7;&#x7A0B;&#x4E2D;&#xFF0C;&#x5F00;&#x53D1;&#x8005;&#x901A;&#x8FC7;<code>dragenter</code>&#x548C;<code>dragover</code>&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#xFF0C;&#x68C0;&#x67E5;&#x6570;&#x636E;&#x7C7B;&#x578B;&#xFF0C;&#x4EE5;&#x786E;&#x5B9A;&#x662F;&#x5426;&#x5141;&#x8BB8;&#x653E;&#x4E0B;&#xFF08;drop&#xFF09;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x5BF9;&#x8C61;&#x3002;&#x6BD4;&#x5982;&#xFF0C;&#x5728;&#x53EA;&#x5141;&#x8BB8;&#x653E;&#x4E0B;&#x94FE;&#x63A5;&#x7684;&#x533A;&#x57DF;&#xFF0C;&#x68C0;&#x67E5;&#x62D6;&#x62C9;&#x7684;&#x6570;&#x636E;&#x7C7B;&#x578B;&#x662F;&#x5426;&#x4E3A;<code>text/uri-list</code>&#x3002;</p>
<p>&#x53D1;&#x751F;<code>drop</code>&#x4E8B;&#x4EF6;&#x65F6;&#xFF0C;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x53D6;&#x51FA;&#x62D6;&#x62C9;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x5BF9;&#x5176;&#x8FDB;&#x884C;&#x5904;&#x7406;&#x3002;</p>
<h2 id="datatransfer-&#x7684;&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;">DataTransfer &#x7684;&#x5B9E;&#x4F8B;&#x5C5E;&#x6027;</h2>
<h3 id="datatransferdropeffect">DataTransfer.dropEffect</h3>
<p><code>DataTransfer.dropEffect</code>&#x5C5E;&#x6027;&#x7528;&#x6765;&#x8BBE;&#x7F6E;&#x653E;&#x4E0B;&#xFF08;drop&#xFF09;&#x88AB;&#x62D6;&#x62C9;&#x8282;&#x70B9;&#x65F6;&#x7684;&#x6548;&#x679C;&#xFF0C;&#x4F1A;&#x5F71;&#x54CD;&#x5230;&#x62D6;&#x62C9;&#x7ECF;&#x8FC7;&#x76F8;&#x5173;&#x533A;&#x57DF;&#x65F6;&#x9F20;&#x6807;&#x7684;&#x5F62;&#x72B6;&#x3002;&#x5B83;&#x53EF;&#x80FD;&#x53D6;&#x4E0B;&#x9762;&#x7684;&#x503C;&#x3002;</p>
<ul>
<li>copy&#xFF1A;&#x590D;&#x5236;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;</li>
<li>move&#xFF1A;&#x79FB;&#x52A8;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;</li>
<li>link&#xFF1A;&#x521B;&#x5EFA;&#x6307;&#x5411;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x7684;&#x94FE;&#x63A5;</li>
<li>none&#xFF1A;&#x65E0;&#x6CD5;&#x653E;&#x4E0B;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;</li>
</ul>
<p>&#x9664;&#x4E86;&#x4E0A;&#x9762;&#x8FD9;&#x4E9B;&#x503C;&#xFF0C;&#x8BBE;&#x7F6E;&#x5176;&#x4ED6;&#x7684;&#x503C;&#x90FD;&#x662F;&#x65E0;&#x6548;&#x7684;&#x3002;</p>
<pre><code class="lang-javascript">target.addEventListener(<span class="hljs-string">&apos;dragover&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  e.preventDefault();
  e.stopPropagation();
  e.dataTransfer.dropEffect = <span class="hljs-string">&apos;copy&apos;</span>;
});
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x88AB;&#x62D6;&#x62C9;&#x5143;&#x7D20;&#x4E00;&#x65E6;<code>drop</code>&#xFF0C;&#x63A5;&#x53D7;&#x7684;&#x533A;&#x57DF;&#x4F1A;&#x590D;&#x5236;&#x8BE5;&#x8282;&#x70B9;&#x3002;</p>
<p><code>dropEffect</code>&#x5C5E;&#x6027;&#x4E00;&#x822C;&#x5728;<code>dragenter</code>&#x548C;<code>dragover</code>&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x4E2D;&#x8BBE;&#x7F6E;&#xFF0C;&#x5BF9;&#x4E8E;<code>dragstart</code>&#x3001;<code>drag</code>&#x3001;<code>dragleave</code>&#x8FD9;&#x4E09;&#x4E2A;&#x4E8B;&#x4EF6;&#xFF0C;&#x8BE5;&#x5C5E;&#x6027;&#x4E0D;&#x8D77;&#x4F5C;&#x7528;&#x3002;&#x56E0;&#x4E3A;&#x8BE5;&#x5C5E;&#x6027;&#x53EA;&#x5BF9;&#x63A5;&#x53D7;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x7684;&#x533A;&#x57DF;&#x6709;&#x6548;&#xFF0C;&#x5BF9;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x672C;&#x8EAB;&#x662F;&#x65E0;&#x6548;&#x7684;&#x3002;&#x8FDB;&#x5165;&#x76EE;&#x6807;&#x533A;&#x57DF;&#x540E;&#xFF0C;&#x62D6;&#x62C9;&#x884C;&#x4E3A;&#x4F1A;&#x521D;&#x59CB;&#x5316;&#x6210;&#x8BBE;&#x5B9A;&#x7684;&#x6548;&#x679C;&#x3002;</p>
<h3 id="datatransfereffectallowed">DataTransfer.effectAllowed</h3>
<p><code>DataTransfer.effectAllowed</code>&#x5C5E;&#x6027;&#x8BBE;&#x7F6E;&#x672C;&#x6B21;&#x62D6;&#x62C9;&#x4E2D;&#x5141;&#x8BB8;&#x7684;&#x6548;&#x679C;&#x3002;&#x5B83;&#x53EF;&#x80FD;&#x53D6;&#x4E0B;&#x9762;&#x7684;&#x503C;&#x3002;</p>
<ul>
<li>copy&#xFF1A;&#x590D;&#x5236;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;</li>
<li>move&#xFF1A;&#x79FB;&#x52A8;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;</li>
<li>link&#xFF1A;&#x521B;&#x5EFA;&#x6307;&#x5411;&#x88AB;&#x62D6;&#x62C9;&#x8282;&#x70B9;&#x7684;&#x94FE;&#x63A5;</li>
<li>copyLink&#xFF1A;&#x5141;&#x8BB8;<code>copy</code>&#x6216;<code>link</code></li>
<li>copyMove&#xFF1A;&#x5141;&#x8BB8;<code>copy</code>&#x6216;<code>move</code></li>
<li>linkMove&#xFF1A;&#x5141;&#x8BB8;<code>link</code>&#x6216;<code>move</code></li>
<li>all&#xFF1A;&#x5141;&#x8BB8;&#x6240;&#x6709;&#x6548;&#x679C;</li>
<li>none&#xFF1A;&#x65E0;&#x6CD5;&#x653E;&#x4E0B;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;</li>
<li>uninitialized&#xFF1A;&#x9ED8;&#x8BA4;&#x503C;&#xFF0C;&#x7B49;&#x540C;&#x4E8E;<code>all</code></li>
</ul>
<p>&#x5982;&#x679C;&#x67D0;&#x79CD;&#x6548;&#x679C;&#x662F;&#x4E0D;&#x5141;&#x8BB8;&#x7684;&#xFF0C;&#x7528;&#x6237;&#x5C31;&#x65E0;&#x6CD5;&#x5728;&#x76EE;&#x6807;&#x8282;&#x70B9;&#x4E2D;&#x8FBE;&#x6210;&#x8FD9;&#x79CD;&#x6548;&#x679C;&#x3002;</p>
<p>&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#x4E0E;<code>dropEffect</code>&#x5C5E;&#x6027;&#x662F;&#x540C;&#x4E00;&#x4EF6;&#x4E8B;&#x7684;&#x4E24;&#x4E2A;&#x65B9;&#x9762;&#x3002;&#x524D;&#x8005;&#x8BBE;&#x7F6E;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x5141;&#x8BB8;&#x7684;&#x6548;&#x679C;&#xFF0C;&#x540E;&#x8005;&#x8BBE;&#x7F6E;&#x63A5;&#x53D7;&#x62D6;&#x62C9;&#x7684;&#x533A;&#x57DF;&#x7684;&#x6548;&#x679C;&#xFF0C;&#x5B83;&#x4EEC;&#x5F80;&#x5F80;&#x914D;&#x5408;&#x4F7F;&#x7528;&#x3002;</p>
<p><code>dragstart</code>&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#xFF0C;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x8BBE;&#x7F6E;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#x3002;&#x5176;&#x4ED6;&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x91CC;&#x9762;&#x8BBE;&#x7F6E;&#x8FD9;&#x4E2A;&#x5C5E;&#x6027;&#x662F;&#x65E0;&#x6548;&#x7684;&#x3002;</p>
<pre><code class="lang-javascript">source.addEventListener(<span class="hljs-string">&apos;dragstart&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  e.dataTransfer.effectAllowed = <span class="hljs-string">&apos;move&apos;</span>;
});

target.addEventListener(<span class="hljs-string">&apos;dragover&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  ev.dataTransfer.dropEffect = <span class="hljs-string">&apos;move&apos;</span>;
});
</code></pre>
<p>&#x53EA;&#x8981;<code>dropEffect</code>&#x5C5E;&#x6027;&#x548C;<code>effectAllowed</code>&#x5C5E;&#x6027;&#x4E4B;&#x4E2D;&#xFF0C;&#x6709;&#x4E00;&#x4E2A;&#x4E3A;<code>none</code>&#xFF0C;&#x5C31;&#x65E0;&#x6CD5;&#x5728;&#x76EE;&#x6807;&#x8282;&#x70B9;&#x4E0A;&#x5B8C;&#x6210;<code>drop</code>&#x64CD;&#x4F5C;&#x3002;</p>
<h3 id="datatransferfiles">DataTransfer.files</h3>
<p><code>DataTransfer.files</code>&#x5C5E;&#x6027;&#x662F;&#x4E00;&#x4E2A; FileList &#x5BF9;&#x8C61;&#xFF0C;&#x5305;&#x542B;&#x4E00;&#x7EC4;&#x672C;&#x5730;&#x6587;&#x4EF6;&#xFF0C;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x5728;&#x62D6;&#x62C9;&#x64CD;&#x4F5C;&#x4E2D;&#x4F20;&#x9001;&#x3002;&#x5982;&#x679C;&#x672C;&#x6B21;&#x62D6;&#x62C9;&#x4E0D;&#x6D89;&#x53CA;&#x6587;&#x4EF6;&#xFF0C;&#x5219;&#x8BE5;&#x5C5E;&#x6027;&#x4E3A;&#x7A7A;&#x7684; FileList &#x5BF9;&#x8C61;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x5C31;&#x662F;&#x4E00;&#x4E2A;&#x63A5;&#x6536;&#x62D6;&#x62C9;&#x6587;&#x4EF6;&#x7684;&#x4F8B;&#x5B50;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">// HTML &#x4EE3;&#x7801;&#x5982;&#x4E0B;</span>
<span class="hljs-comment">// &lt;div id=&quot;output&quot; style=&quot;min-height: 200px;border: 1px solid black;&quot;&gt;</span>
<span class="hljs-comment">//   &#x6587;&#x4EF6;&#x62D6;&#x62C9;&#x5230;&#x8FD9;&#x91CC;</span>
<span class="hljs-comment">// &lt;/div&gt;</span>

<span class="hljs-keyword">var</span> div = <span class="hljs-built_in">document</span>.getElementById(<span class="hljs-string">&apos;output&apos;</span>);

div.addEventListener(<span class="hljs-string">&quot;dragenter&quot;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params"> event </span>) </span>{
  div.textContent = <span class="hljs-string">&apos;&apos;</span>;
  event.stopPropagation();
  event.preventDefault();
}, <span class="hljs-literal">false</span>);

div.addEventListener(<span class="hljs-string">&quot;dragover&quot;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params"> event </span>) </span>{
  event.stopPropagation();
  event.preventDefault();
}, <span class="hljs-literal">false</span>);

div.addEventListener(<span class="hljs-string">&quot;drop&quot;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params"> event </span>) </span>{
  event.stopPropagation();
  event.preventDefault();
  <span class="hljs-keyword">var</span> files = event.dataTransfer.files;
  <span class="hljs-keyword">for</span> (<span class="hljs-keyword">var</span> i = <span class="hljs-number">0</span>; i &lt; files.length; i++) {
    div.textContent += files[i].name + <span class="hljs-string">&apos; &apos;</span> + files[i].size + <span class="hljs-string">&apos;&#x5B57;&#x8282;\n&apos;</span>;
  }
}, <span class="hljs-literal">false</span>);
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x901A;&#x8FC7;<code>dataTransfer.files</code>&#x5C5E;&#x6027;&#x8BFB;&#x53D6;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x6587;&#x4EF6;&#x7684;&#x4FE1;&#x606F;&#x3002;&#x5982;&#x679C;&#x60F3;&#x8981;&#x8BFB;&#x53D6;&#x6587;&#x4EF6;&#x5185;&#x5BB9;&#xFF0C;&#x5C31;&#x8981;&#x4F7F;&#x7528;<code>FileReader</code>&#x5BF9;&#x8C61;&#x3002;</p>
<pre><code class="lang-javascript">div.addEventListener(<span class="hljs-string">&apos;drop&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">e</span>) </span>{
  e.preventDefault();
  e.stopPropagation();

  <span class="hljs-keyword">var</span> fileList = e.dataTransfer.files;
  <span class="hljs-keyword">if</span> (fileList.length &gt; <span class="hljs-number">0</span>) {
    <span class="hljs-keyword">var</span> file = fileList[<span class="hljs-number">0</span>];
    <span class="hljs-keyword">var</span> reader = <span class="hljs-keyword">new</span> FileReader();
    reader.onloadend = <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">e</span>) </span>{
      <span class="hljs-keyword">if</span> (e.target.readyState === FileReader.DONE) {
        <span class="hljs-keyword">var</span> content = reader.result;
        div.innerHTML = <span class="hljs-string">&apos;File: &apos;</span> + file.name + <span class="hljs-string">&apos;\n\n&apos;</span> + content;
      }
    }
    reader.readAsBinaryString(file);
  }
});
</code></pre>
<h3 id="datatransfertypes">DataTransfer.types</h3>
<p><code>DataTransfer.types</code>&#x5C5E;&#x6027;&#x662F;&#x4E00;&#x4E2A;&#x53EA;&#x8BFB;&#x7684;&#x6570;&#x7EC4;&#xFF0C;&#x6BCF;&#x4E2A;&#x6210;&#x5458;&#x662F;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x91CC;&#x9762;&#x662F;&#x62D6;&#x62C9;&#x7684;&#x6570;&#x636E;&#x683C;&#x5F0F;&#xFF08;&#x901A;&#x5E38;&#x662F; MIME &#x503C;&#xFF09;&#x3002;&#x6BD4;&#x5982;&#xFF0C;&#x5982;&#x679C;&#x62D6;&#x62C9;&#x7684;&#x662F;&#x6587;&#x5B57;&#xFF0C;&#x5BF9;&#x5E94;&#x7684;&#x6210;&#x5458;&#x5C31;&#x662F;<code>text/plain</code>&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x4F8B;&#x5B50;&#xFF0C;&#x901A;&#x8FC7;&#x68C0;&#x67E5;<code>dataTransfer</code>&#x5C5E;&#x6027;&#x7684;&#x7C7B;&#x578B;&#xFF0C;&#x51B3;&#x5B9A;&#x662F;&#x5426;&#x5141;&#x8BB8;&#x5728;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x6267;&#x884C;<code>drop</code>&#x64CD;&#x4F5C;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">contains</span>(<span class="hljs-params">list, value</span>)</span>{
  <span class="hljs-keyword">for</span> (<span class="hljs-keyword">var</span> i = <span class="hljs-number">0</span>; i &lt; list.length; ++i) {
    <span class="hljs-keyword">if</span>(list[i] === value) <span class="hljs-keyword">return</span> <span class="hljs-literal">true</span>;
  }
  <span class="hljs-keyword">return</span> <span class="hljs-literal">false</span>;
}

<span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">doDragOver</span>(<span class="hljs-params">event</span>) </span>{
  <span class="hljs-keyword">var</span> isLink = contains(event.dataTransfer.types, <span class="hljs-string">&apos;text/uri-list&apos;</span>);
  <span class="hljs-keyword">if</span> (isLink) event.preventDefault();
}
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x53EA;&#x6709;&#x5F53;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x8282;&#x70B9;&#x662F;&#x4E00;&#x4E2A;&#x94FE;&#x63A5;&#x65F6;&#xFF0C;&#x624D;&#x5141;&#x8BB8;&#x5728;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x653E;&#x4E0B;&#x3002;</p>
<h3 id="datatransferitems">DataTransfer.items</h3>
<p><code>DataTransfer.items</code>&#x5C5E;&#x6027;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x7C7B;&#x4F3C;&#x6570;&#x7EC4;&#x7684;&#x53EA;&#x8BFB;&#x5BF9;&#x8C61;&#xFF08;DataTransferItemList &#x5B9E;&#x4F8B;&#xFF09;&#xFF0C;&#x6BCF;&#x4E2A;&#x6210;&#x5458;&#x5C31;&#x662F;&#x672C;&#x6B21;&#x62D6;&#x62C9;&#x7684;&#x4E00;&#x4E2A;&#x5BF9;&#x8C61;&#xFF08;DataTransferItem &#x5B9E;&#x4F8B;&#xFF09;&#x3002;&#x5982;&#x679C;&#x672C;&#x6B21;&#x62D6;&#x62C9;&#x4E0D;&#x5305;&#x542B;&#x5BF9;&#x8C61;&#xFF0C;&#x5219;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x7A7A;&#x5BF9;&#x8C61;&#x3002;</p>
<p>DataTransferItemList &#x5B9E;&#x4F8B;&#x5177;&#x6709;&#x4EE5;&#x4E0B;&#x7684;&#x5C5E;&#x6027;&#x548C;&#x65B9;&#x6CD5;&#x3002;</p>
<ul>
<li><code>length</code>&#xFF1A;&#x8FD4;&#x56DE;&#x6210;&#x5458;&#x7684;&#x6570;&#x91CF;</li>
<li><code>add(data, type)</code>&#xFF1A;&#x589E;&#x52A0;&#x4E00;&#x4E2A;&#x6307;&#x5B9A;&#x5185;&#x5BB9;&#x548C;&#x7C7B;&#x578B;&#xFF08;&#x6BD4;&#x5982;<code>text/html</code>&#x548C;<code>text/plain</code>&#xFF09;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#x4F5C;&#x4E3A;&#x6210;&#x5458;</li>
<li><code>add(file)</code>&#xFF1A;<code>add</code>&#x65B9;&#x6CD5;&#x7684;&#x53E6;&#x4E00;&#x79CD;&#x7528;&#x6CD5;&#xFF0C;&#x589E;&#x52A0;&#x4E00;&#x4E2A;&#x6587;&#x4EF6;&#x4F5C;&#x4E3A;&#x6210;&#x5458;</li>
<li><code>remove(index)</code>&#xFF1A;&#x79FB;&#x9664;&#x6307;&#x5B9A;&#x4F4D;&#x7F6E;&#x7684;&#x6210;&#x5458;</li>
<li><code>clear()</code>&#xFF1A;&#x79FB;&#x9664;&#x6240;&#x6709;&#x7684;&#x6210;&#x5458;</li>
</ul>
<p>DataTransferItem &#x5B9E;&#x4F8B;&#x5177;&#x6709;&#x4EE5;&#x4E0B;&#x7684;&#x5C5E;&#x6027;&#x548C;&#x65B9;&#x6CD5;&#x3002;</p>
<ul>
<li><code>kind</code>&#xFF1A;&#x8FD4;&#x56DE;&#x6210;&#x5458;&#x7684;&#x79CD;&#x7C7B;&#xFF08;<code>string</code>&#x8FD8;&#x662F;<code>file</code>&#xFF09;&#x3002;</li>
<li><code>type</code>&#xFF1A;&#x8FD4;&#x56DE;&#x6210;&#x5458;&#x7684;&#x7C7B;&#x578B;&#xFF08;&#x901A;&#x5E38;&#x662F; MIME &#x503C;&#xFF09;&#x3002;</li>
<li><code>getAsFile()</code>&#xFF1A;&#x5982;&#x679C;&#x88AB;&#x62D6;&#x62C9;&#x662F;&#x6587;&#x4EF6;&#xFF0C;&#x8FD4;&#x56DE;&#x8BE5;&#x6587;&#x4EF6;&#xFF0C;&#x5426;&#x5219;&#x8FD4;&#x56DE;<code>null</code>&#x3002;</li>
<li><code>getAsString(callback)</code>&#xFF1A;&#x5982;&#x679C;&#x88AB;&#x62D6;&#x62C9;&#x7684;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x5C06;&#x8BE5;&#x5B57;&#x7B26;&#x4F20;&#x5165;&#x6307;&#x5B9A;&#x7684;&#x56DE;&#x8C03;&#x51FD;&#x6570;&#x5904;&#x7406;&#x3002;&#x8BE5;&#x65B9;&#x6CD5;&#x662F;&#x5F02;&#x6B65;&#x7684;&#xFF0C;&#x6240;&#x4EE5;&#x9700;&#x8981;&#x4F20;&#x5165;&#x56DE;&#x8C03;&#x51FD;&#x6570;&#x3002;</li>
</ul>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x4F8B;&#x5B50;&#x3002;</p>
<pre><code class="lang-javascript">div.addEventListener(<span class="hljs-string">&apos;drop&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  e.preventDefault();
  <span class="hljs-keyword">if</span> (e.dataTransfer.items != <span class="hljs-literal">null</span>) {
    <span class="hljs-keyword">for</span> (<span class="hljs-keyword">var</span> i = <span class="hljs-number">0</span>; i &lt; e.dataTransfer.items.length; i++) {
      <span class="hljs-built_in">console</span>.log(e.dataTransfer.items[i].kind + <span class="hljs-string">&apos;: &apos;</span> + e.dataTransfer.items[i].type);
    }
  }
});
</code></pre>
<h2 id="datatransfer-&#x7684;&#x5B9E;&#x4F8B;&#x65B9;&#x6CD5;">DataTransfer &#x7684;&#x5B9E;&#x4F8B;&#x65B9;&#x6CD5;</h2>
<h3 id="datatransfersetdata">DataTransfer.setData()</h3>
<p><code>DataTransfer.setData()</code>&#x65B9;&#x6CD5;&#x7528;&#x6765;&#x8BBE;&#x7F6E;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x6240;&#x5E26;&#x6709;&#x7684;&#x6570;&#x636E;&#x3002;&#x8BE5;&#x65B9;&#x6CD5;&#x6CA1;&#x6709;&#x8FD4;&#x56DE;&#x503C;&#x3002;</p>
<pre><code class="lang-javascript">event.dataTransfer.setData(<span class="hljs-string">&apos;text/plain&apos;</span>, <span class="hljs-string">&apos;Text to drag&apos;</span>);
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E3A;&#x5F53;&#x524D;&#x7684;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x52A0;&#x5165;&#x7EAF;&#x6587;&#x672C;&#x6570;&#x636E;&#x3002;</p>
<p>&#x8BE5;&#x65B9;&#x6CD5;&#x63A5;&#x53D7;&#x4E24;&#x4E2A;&#x53C2;&#x6570;&#xFF0C;&#x90FD;&#x662F;&#x5B57;&#x7B26;&#x4E32;&#x3002;&#x7B2C;&#x4E00;&#x4E2A;&#x53C2;&#x6570;&#x8868;&#x793A;&#x6570;&#x636E;&#x7C7B;&#x578B;&#xFF08;&#x6BD4;&#x5982;<code>text/plain</code>&#xFF09;&#xFF0C;&#x7B2C;&#x4E8C;&#x4E2A;&#x53C2;&#x6570;&#x662F;&#x5177;&#x4F53;&#x6570;&#x636E;&#x3002;&#x5982;&#x679C;&#x6307;&#x5B9A;&#x7C7B;&#x578B;&#x7684;&#x6570;&#x636E;&#x5728;<code>dataTransfer</code>&#x5C5E;&#x6027;&#x4E0D;&#x5B58;&#x5728;&#xFF0C;&#x90A3;&#x4E48;&#x8FD9;&#x4E9B;&#x6570;&#x636E;&#x5C06;&#x88AB;&#x52A0;&#x5165;&#xFF0C;&#x5426;&#x5219;&#x539F;&#x6709;&#x7684;&#x6570;&#x636E;&#x5C06;&#x88AB;&#x65B0;&#x6570;&#x636E;&#x66FF;&#x6362;&#x3002;</p>
<p>&#x5982;&#x679C;&#x662F;&#x62D6;&#x62C9;&#x6587;&#x672C;&#x6846;&#x6216;&#x8005;&#x62D6;&#x62C9;&#x9009;&#x4E2D;&#x7684;&#x6587;&#x672C;&#xFF0C;&#x4F1A;&#x9ED8;&#x8BA4;&#x5C06;&#x5BF9;&#x5E94;&#x7684;&#x6587;&#x672C;&#x6570;&#x636E;&#xFF0C;&#x6DFB;&#x52A0;&#x5230;<code>dataTransfer</code>&#x5C5E;&#x6027;&#xFF0C;&#x4E0D;&#x7528;&#x624B;&#x52A8;&#x6307;&#x5B9A;&#x3002;</p>
<pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">draggable</span>=<span class="hljs-string">&quot;true&quot;</span>&gt;</span>
  aaa
<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x62D6;&#x62C9;&#x8FD9;&#x4E2A;<code>&lt;div&gt;</code>&#x5143;&#x7D20;&#x4F1A;&#x81EA;&#x52A8;&#x5E26;&#x4E0A;&#x6587;&#x672C;&#x6570;&#x636E;<code>aaa</code>&#x3002;</p>
<p>&#x4F7F;&#x7528;<code>setData</code>&#x65B9;&#x6CD5;&#xFF0C;&#x53EF;&#x4EE5;&#x66FF;&#x6362;&#x5230;&#x539F;&#x6709;&#x6570;&#x636E;&#x3002;</p>
<pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">div</span>
  <span class="hljs-attr">draggable</span>=<span class="hljs-string">&quot;true&quot;</span>
  <span class="hljs-attr">ondragstart</span>=<span class="hljs-string">&quot;event.dataTransfer.setData(&apos;text/plain&apos;, &apos;bbb&apos;)&quot;</span>
&gt;</span>
  aaa
<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x62D6;&#x62C9;&#x6570;&#x636E;&#x5B9E;&#x9645;&#x4E0A;&#x662F;<code>bbb</code>&#xFF0C;&#x800C;&#x4E0D;&#x662F;<code>aaa</code>&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x662F;&#x6DFB;&#x52A0;&#x5176;&#x4ED6;&#x7C7B;&#x578B;&#x7684;&#x6570;&#x636E;&#x3002;&#x7531;&#x4E8E;<code>text/plain</code>&#x662F;&#x6700;&#x666E;&#x904D;&#x652F;&#x6301;&#x7684;&#x683C;&#x5F0F;&#xFF0C;&#x4E3A;&#x4E86;&#x4FDD;&#x8BC1;&#x517C;&#x5BB9;&#x6027;&#xFF0C;&#x5EFA;&#x8BAE;&#x6700;&#x540E;&#x603B;&#x662F;&#x4FDD;&#x5B58;&#x4E00;&#x4EFD;&#x7EAF;&#x6587;&#x672C;&#x683C;&#x5F0F;&#x7684;&#x6570;&#x636E;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> dt = event.dataTransfer;

<span class="hljs-comment">// &#x6DFB;&#x52A0;&#x94FE;&#x63A5;</span>
dt.setData(<span class="hljs-string">&apos;text/uri-list&apos;</span>, <span class="hljs-string">&apos;http://www.example.com&apos;</span>);
dt.setData(<span class="hljs-string">&apos;text/plain&apos;</span>, <span class="hljs-string">&apos;http://www.example.com&apos;</span>);

<span class="hljs-comment">// &#x6DFB;&#x52A0; HTML &#x4EE3;&#x7801;</span>
dt.setData(<span class="hljs-string">&apos;text/html&apos;</span>, <span class="hljs-string">&apos;Hello there, &lt;strong&gt;stranger&lt;/strong&gt;&apos;</span>);
dt.setData(<span class="hljs-string">&apos;text/plain&apos;</span>, <span class="hljs-string">&apos;Hello there, &lt;strong&gt;stranger&lt;/strong&gt;&apos;</span>);

<span class="hljs-comment">// &#x6DFB;&#x52A0;&#x56FE;&#x50CF;&#x7684; URL</span>
dt.setData(<span class="hljs-string">&apos;text/uri-list&apos;</span>, imageurl);
dt.setData(<span class="hljs-string">&apos;text/plain&apos;</span>, imageurl);
</code></pre>
<p>&#x53EF;&#x4EE5;&#x4E00;&#x6B21;&#x63D0;&#x4F9B;&#x591A;&#x79CD;&#x683C;&#x5F0F;&#x7684;&#x6570;&#x636E;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> dt = event.dataTransfer;
dt.setData(<span class="hljs-string">&apos;application/x-bookmark&apos;</span>, bookmarkString);
dt.setData(<span class="hljs-string">&apos;text/uri-list&apos;</span>, <span class="hljs-string">&apos;http://www.example.com&apos;</span>);
dt.setData(<span class="hljs-string">&apos;text/plain&apos;</span>, <span class="hljs-string">&apos;http://www.example.com&apos;</span>);
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x901A;&#x8FC7;&#x5728;&#x540C;&#x4E00;&#x4E2A;&#x4E8B;&#x4EF6;&#x4E0A;&#x9762;&#xFF0C;&#x5B58;&#x653E;&#x4E09;&#x79CD;&#x7C7B;&#x578B;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x4F7F;&#x5F97;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x53EF;&#x4EE5;&#x5728;&#x4E0D;&#x540C;&#x7684;&#x5BF9;&#x8C61;&#x4E0A;&#x9762;&#xFF0C;<code>drop</code>&#x4E0D;&#x540C;&#x7684;&#x503C;&#x3002;&#x6CE8;&#x610F;&#xFF0C;&#x7B2C;&#x4E00;&#x79CD;&#x683C;&#x5F0F;&#x662F;&#x4E00;&#x4E2A;&#x81EA;&#x5B9A;&#x4E49;&#x683C;&#x5F0F;&#xFF0C;&#x6D4F;&#x89C8;&#x5668;&#x9ED8;&#x8BA4;&#x65E0;&#x6CD5;&#x8BFB;&#x53D6;&#xFF0C;&#x8FD9;&#x610F;&#x5473;&#x7740;&#xFF0C;&#x53EA;&#x6709;&#x67D0;&#x4E2A;&#x90E8;&#x7F72;&#x4E86;&#x7279;&#x5B9A;&#x4EE3;&#x7801;&#x7684;&#x8282;&#x70B9;&#xFF0C;&#x624D;&#x53EF;&#x80FD;<code>drop</code>&#xFF08;&#x8BFB;&#x53D6;&#x5230;&#xFF09;&#x8FD9;&#x4E2A;&#x6570;&#x636E;&#x3002;</p>
<h3 id="datatransfergetdata">DataTransfer.getData()</h3>
<p><code>DataTransfer.getData()</code>&#x65B9;&#x6CD5;&#x63A5;&#x53D7;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#xFF08;&#x8868;&#x793A;&#x6570;&#x636E;&#x7C7B;&#x578B;&#xFF09;&#x4F5C;&#x4E3A;&#x53C2;&#x6570;&#xFF0C;&#x8FD4;&#x56DE;&#x4E8B;&#x4EF6;&#x6240;&#x5E26;&#x7684;&#x6307;&#x5B9A;&#x7C7B;&#x578B;&#x7684;&#x6570;&#x636E;&#xFF08;&#x901A;&#x5E38;&#x662F;&#x7528;<code>setData</code>&#x65B9;&#x6CD5;&#x6DFB;&#x52A0;&#x7684;&#x6570;&#x636E;&#xFF09;&#x3002;&#x5982;&#x679C;&#x6307;&#x5B9A;&#x7C7B;&#x578B;&#x7684;&#x6570;&#x636E;&#x4E0D;&#x5B58;&#x5728;&#xFF0C;&#x5219;&#x8FD4;&#x56DE;&#x7A7A;&#x5B57;&#x7B26;&#x4E32;&#x3002;&#x901A;&#x5E38;&#x53EA;&#x6709;<code>drop</code>&#x4E8B;&#x4EF6;&#x89E6;&#x53D1;&#x540E;&#xFF0C;&#x624D;&#x80FD;&#x53D6;&#x51FA;&#x6570;&#x636E;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;<code>drop</code>&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#xFF0C;&#x7528;&#x6765;&#x53D6;&#x51FA;&#x6307;&#x5B9A;&#x7C7B;&#x578B;&#x7684;&#x6570;&#x636E;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">onDrop</span>(<span class="hljs-params">event</span>) </span>{
  <span class="hljs-keyword">var</span> data = event.dataTransfer.getData(<span class="hljs-string">&apos;text/plain&apos;</span>);
  event.target.textContent = data;
  event.preventDefault();
}
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x53D6;&#x51FA;&#x62D6;&#x62C9;&#x4E8B;&#x4EF6;&#x7684;&#x6587;&#x672C;&#x6570;&#x636E;&#xFF0C;&#x5C06;&#x5176;&#x66FF;&#x6362;&#x6210;&#x5F53;&#x524D;&#x8282;&#x70B9;&#x7684;&#x6587;&#x672C;&#x5185;&#x5BB9;&#x3002;&#x6CE8;&#x610F;&#xFF0C;&#x8FD9;&#x65F6;&#x8FD8;&#x5FC5;&#x987B;&#x53D6;&#x6D88;&#x6D4F;&#x89C8;&#x5668;&#x7684;&#x9ED8;&#x8BA4;&#x884C;&#x4E3A;&#xFF0C;&#x56E0;&#x4E3A;&#x5047;&#x5982;&#x7528;&#x6237;&#x62D6;&#x62C9;&#x7684;&#x662F;&#x4E00;&#x4E2A;&#x94FE;&#x63A5;&#xFF0C;&#x6D4F;&#x89C8;&#x5668;&#x9ED8;&#x8BA4;&#x4F1A;&#x5728;&#x5F53;&#x524D;&#x7A97;&#x53E3;&#x6253;&#x5F00;&#x8FD9;&#x4E2A;&#x94FE;&#x63A5;&#x3002;</p>
<p><code>getData</code>&#x65B9;&#x6CD5;&#x8FD4;&#x56DE;&#x7684;&#x662F;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x5982;&#x679C;&#x5176;&#x4E2D;&#x5305;&#x542B;&#x591A;&#x9879;&#x6570;&#x636E;&#xFF0C;&#x5C31;&#x5FC5;&#x987B;&#x624B;&#x52A8;&#x89E3;&#x6790;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">doDrop</span>(<span class="hljs-params">event</span>) </span>{
  <span class="hljs-keyword">var</span> lines = event.dataTransfer.getData(<span class="hljs-string">&apos;text/uri-list&apos;</span>).split(<span class="hljs-string">&apos;\n&apos;</span>);
  <span class="hljs-keyword">for</span> (<span class="hljs-keyword">let</span> line <span class="hljs-keyword">of</span> lines) {
    <span class="hljs-keyword">let</span> link = <span class="hljs-built_in">document</span>.createElement(<span class="hljs-string">&apos;a&apos;</span>);
    link.href = line;
    link.textContent = line;
    event.target.appendChild(link);
  }
  event.preventDefault();
}
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;<code>getData</code>&#x65B9;&#x6CD5;&#x8FD4;&#x56DE;&#x7684;&#x662F;&#x4E00;&#x7EC4;&#x94FE;&#x63A5;&#xFF0C;&#x5C31;&#x5FC5;&#x987B;&#x81EA;&#x884C;&#x89E3;&#x6790;&#x3002;</p>
<p>&#x7C7B;&#x578B;&#x503C;&#x6307;&#x5B9A;&#x4E3A;<code>URL</code>&#xFF0C;&#x53EF;&#x4EE5;&#x53D6;&#x51FA;&#x7B2C;&#x4E00;&#x4E2A;&#x6709;&#x6548;&#x94FE;&#x63A5;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> link = event.dataTransfer.getData(<span class="hljs-string">&apos;URL&apos;</span>);
</code></pre>
<p>&#x4E0B;&#x9762;&#x7684;&#x4F8B;&#x5B50;&#x662F;&#x4ECE;&#x591A;&#x79CD;&#x7C7B;&#x578B;&#x7684;&#x6570;&#x636E;&#x91CC;&#x9762;&#x53D6;&#x51FA;&#x6570;&#x636E;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">doDrop</span>(<span class="hljs-params">event</span>) </span>{
  <span class="hljs-keyword">var</span> types = event.dataTransfer.types;
  <span class="hljs-keyword">var</span> supportedTypes = [<span class="hljs-string">&apos;text/uri-list&apos;</span>, <span class="hljs-string">&apos;text/plain&apos;</span>];
  types = supportedTypes.filter(<span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">value</span>) </span>{ types.includes(value) });
  <span class="hljs-keyword">if</span> (types.length) {
    <span class="hljs-keyword">var</span> data = event.dataTransfer.getData(types[<span class="hljs-number">0</span>]);
  }
  event.preventDefault();
}
</code></pre>
<h3 id="datatransfercleardata">DataTransfer.clearData()</h3>
<p><code>DataTransfer.clearData()</code>&#x65B9;&#x6CD5;&#x63A5;&#x53D7;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#xFF08;&#x8868;&#x793A;&#x6570;&#x636E;&#x7C7B;&#x578B;&#xFF09;&#x4F5C;&#x4E3A;&#x53C2;&#x6570;&#xFF0C;&#x5220;&#x9664;&#x4E8B;&#x4EF6;&#x6240;&#x5E26;&#x7684;&#x6307;&#x5B9A;&#x7C7B;&#x578B;&#x7684;&#x6570;&#x636E;&#x3002;&#x5982;&#x679C;&#x6CA1;&#x6709;&#x6307;&#x5B9A;&#x7C7B;&#x578B;&#xFF0C;&#x5219;&#x5220;&#x9664;&#x6240;&#x6709;&#x6570;&#x636E;&#x3002;&#x5982;&#x679C;&#x6307;&#x5B9A;&#x7C7B;&#x578B;&#x4E0D;&#x5B58;&#x5728;&#xFF0C;&#x5219;&#x8C03;&#x7528;&#x8BE5;&#x65B9;&#x6CD5;&#x4E0D;&#x4F1A;&#x4EA7;&#x751F;&#x4EFB;&#x4F55;&#x6548;&#x679C;&#x3002;</p>
<pre><code class="lang-javascript">event.dataTransfer.clearData(<span class="hljs-string">&apos;text/uri-list&apos;</span>);
</code></pre>
<p>&#x4E0A;&#x9762;&#x4EE3;&#x7801;&#x6E05;&#x9664;&#x4E8B;&#x4EF6;&#x6240;&#x5E26;&#x7684;<code>text/uri-list</code>&#x7C7B;&#x578B;&#x7684;&#x6570;&#x636E;&#x3002;</p>
<p>&#x8BE5;&#x65B9;&#x6CD5;&#x4E0D;&#x4F1A;&#x79FB;&#x9664;&#x62D6;&#x62C9;&#x7684;&#x6587;&#x4EF6;&#xFF0C;&#x56E0;&#x6B64;&#x8C03;&#x7528;&#x8BE5;&#x65B9;&#x6CD5;&#x540E;&#xFF0C;<code>DataTransfer.types</code>&#x5C5E;&#x6027;&#x53EF;&#x80FD;&#x4F9D;&#x7136;&#x4F1A;&#x8FD4;&#x56DE;<code>Files</code>&#x7C7B;&#x578B;&#xFF08;&#x524D;&#x63D0;&#x662F;&#x5B58;&#x5728;&#x6587;&#x4EF6;&#x62D6;&#x62C9;&#xFF09;&#x3002;</p>
<p>&#x6CE8;&#x610F;&#xFF0C;&#x8BE5;&#x65B9;&#x6CD5;&#x53EA;&#x80FD;&#x5728;<code>dragstart</code>&#x4E8B;&#x4EF6;&#x7684;&#x76D1;&#x542C;&#x51FD;&#x6570;&#x4E4B;&#x4E2D;&#x4F7F;&#x7528;&#xFF0C;&#x56E0;&#x4E3A;&#x8FD9;&#x662F;&#x62D6;&#x62C9;&#x64CD;&#x4F5C;&#x7684;&#x6570;&#x636E;&#x552F;&#x4E00;&#x53EF;&#x5199;&#x7684;&#x65F6;&#x673A;&#x3002;</p>
<h3 id="datatransfersetdragimage">DataTransfer.setDragImage()</h3>
<p>&#x62D6;&#x52A8;&#x8FC7;&#x7A0B;&#x4E2D;&#xFF08;<code>dragstart</code>&#x4E8B;&#x4EF6;&#x89E6;&#x53D1;&#x540E;&#xFF09;&#xFF0C;&#x6D4F;&#x89C8;&#x5668;&#x4F1A;&#x663E;&#x793A;&#x4E00;&#x5F20;&#x56FE;&#x7247;&#x8DDF;&#x968F;&#x9F20;&#x6807;&#x4E00;&#x8D77;&#x79FB;&#x52A8;&#xFF0C;&#x8868;&#x793A;&#x88AB;&#x62D6;&#x52A8;&#x7684;&#x8282;&#x70B9;&#x3002;&#x8FD9;&#x5F20;&#x56FE;&#x7247;&#x662F;&#x81EA;&#x52A8;&#x521B;&#x9020;&#x7684;&#xFF0C;&#x901A;&#x5E38;&#x663E;&#x793A;&#x4E3A;&#x88AB;&#x62D6;&#x52A8;&#x8282;&#x70B9;&#x7684;&#x5916;&#x89C2;&#xFF0C;&#x4E0D;&#x9700;&#x8981;&#x81EA;&#x5DF1;&#x52A8;&#x624B;&#x8BBE;&#x7F6E;&#x3002;</p>
<p><code>DataTransfer.setDragImage()</code>&#x65B9;&#x6CD5;&#x53EF;&#x4EE5;&#x81EA;&#x5B9A;&#x4E49;&#x8FD9;&#x5F20;&#x56FE;&#x7247;&#x3002;&#x5B83;&#x63A5;&#x53D7;&#x4E09;&#x4E2A;&#x53C2;&#x6570;&#x3002;&#x7B2C;&#x4E00;&#x4E2A;&#x662F;<code>&lt;img&gt;</code>&#x8282;&#x70B9;&#x6216;&#x8005;<code>&lt;canvas&gt;</code>&#x8282;&#x70B9;&#xFF0C;&#x5982;&#x679C;&#x7701;&#x7565;&#x6216;&#x4E3A;<code>null</code>&#xFF0C;&#x5219;&#x4F7F;&#x7528;&#x88AB;&#x62D6;&#x52A8;&#x7684;&#x8282;&#x70B9;&#x7684;&#x5916;&#x89C2;&#xFF1B;&#x7B2C;&#x4E8C;&#x4E2A;&#x548C;&#x7B2C;&#x4E09;&#x4E2A;&#x53C2;&#x6570;&#x4E3A;&#x9F20;&#x6807;&#x76F8;&#x5BF9;&#x4E8E;&#x8BE5;&#x56FE;&#x7247;&#x5DE6;&#x4E0A;&#x89D2;&#x7684;&#x6A2A;&#x5750;&#x6807;&#x548C;&#x53F3;&#x5750;&#x6807;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x4F8B;&#x5B50;&#x3002;</p>
<pre><code class="lang-javascript"><span class="hljs-comment">/* HTML &#x4EE3;&#x7801;&#x5982;&#x4E0B;
 &lt;div id=&quot;drag-with-image&quot; class=&quot;dragdemo&quot; draggable=&quot;true&quot;&gt;
   drag me
 &lt;/div&gt;
*/</span>

<span class="hljs-keyword">var</span> div = <span class="hljs-built_in">document</span>.getElementById(<span class="hljs-string">&apos;drag-with-image&apos;</span>);
div.addEventListener(<span class="hljs-string">&apos;dragstart&apos;</span>, <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">e</span>) </span>{
  <span class="hljs-keyword">var</span> img = <span class="hljs-built_in">document</span>.createElement(<span class="hljs-string">&apos;img&apos;</span>);
  img.src = <span class="hljs-string">&apos;http://path/to/img&apos;</span>;
  e.dataTransfer.setDragImage(img, <span class="hljs-number">0</span>, <span class="hljs-number">0</span>);
}, <span class="hljs-literal">false</span>);
</code></pre>




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